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    <title>Document</title>
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<body>
    <script>
        var obj ={
            names:'lisi'
        }
         /* bind改变了函数内部this指向，只是改变了函数运行的上下文环境，不会马上执行 */
         var fn = function () {
            console.log(this.names);
          }.bind(obj)
        fn() 
        /* var go = function(a,b){
            console.log(this.names);
            console.log(a+b);
        }
        // go.call(obj,1,2)
        go.apply(obj,[1,2]) */
    </script>
</body>
</html>